package com.xuecheng.content.service;

import com.xuecheng.content.model.dto.CourseCategoryTreeDto;

import java.util.List;

/**
 * Date:2023/7/6
 * Author:丐版小杨哥
 * Description:
 */
public interface CourseCategoryService {
    /**
     * 课程的分层查询
     * @return
     */
    public List<CourseCategoryTreeDto> queryTreeNode(String id);
}
